|Publication number||US2840415 A|
|Publication date||Jun 24, 1958|
|Filing date||Sep 27, 1955|
|Priority date||Sep 27, 1955|
|Publication number||US 2840415 A, US 2840415A, US-A-2840415, US2840415 A, US2840415A|
|Inventors||Morris Robert C|
|Original Assignee||American Hatchery Engineers In|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (9), Classifications (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
June 24, 1958 R. c. MoRRls EGG HANDLING APPARATUS 2 Sheets-Sheet 1 Filed Sept. 27, 1955 IIIIIIIIIIIIIIJ 7 INVENTO R. ROBERT C.MORR|S June 24,1958 R. c. MORRIS 2,840,415
EGG HANDLING APPARATUS Filed Sept. 27, 1955 y 2 Sheets-Sheet 2 @-14 f@ sa 3f I@ l l I c@ v c@ j 29 LUG-7 l 36 37 a m04 FIGS.
H e 5a 1/ il i if z3 24 28- 20 /6 W///////// ///////g. lNvENT ROBERT C. MORR g/g Yw/ BY MPM ATTYs.
United States Patent EGG HANDLING APPARATUS Robert C. Morris, Trappe, Md., assignor to American Hatchery Engineers, Inc., Easton, Md., a corporation of Maryland Application September 27,1955, Serial No. 536,934 4 Claims. (Cl. 294-65) The presentinvention relates to an egg handling apparatus and more particularly to a vacuum-actuated device for picking up and depositing eggs.
Therpresent invention has particular utility in devices for transferring eggs from packing crates to cartons, incubator trays, or other egg handling equipment. The conventional egg crates consist of two sections, each receiving sixy rows of eggs containing six eggs each. Other crates are on the market which receive live rows of eggs of six eggs each. Still other crates whichl are coming into use consist of two sections, each V.receiving eight rows of eggs of six eggs each. The present invention contemplates a device which is capable of engaging all of the eggs in each section of the various crates currently employed in the industry.
The device of the present invention is light in weight and susceptible of single hand operation, to pick upa 2,840,415 Patented June 24, 1958 Referring now to the drawings, the egg pickup device comprises iirst and second spaced plates 10 and 11 respectively. Preferably, the plates areY composed of transparent plastic so that the cleanliness thereof may be readily ascertained, but any suitable lightweight rigid material may be employed. Y
The first and second plates 10 and 11 are held in spaced parallel relation by asealing member 12 Vextending continuously about the periphery of the plates. The plates and the walls of the sealing strip define a vacuum chamber -13 therebetween. The sealing strip 12 is comice pressed between the plates 10 and 11 by a plurality of section of eggs by suction .or vacuum. Although vacuum A pickup devicesfor eggs have been proposed prior to the present invention, none has been successful because of the excessive weight, or of the construction which makes cleaning very difficult. In eggV handling apparatus, it is imperative that the device be readily cleaned since it frequently Vloccurs. that a cracked egg is in the crate. When the suction device engages a cracked egg,Y it is likely to draw the albumen from the' egg into the suction system. When the albumen is exposed to air, it solidies and forms a crust which impairs the operation of the suction system. When this occurs, weak suction'resjllts andv the pickup device isL likely to fail to retain the eggs'during transfer from the crate to other locations. p
With the foregoing in mind, a primary obCt of theA present inventionis to provide an improved vacuum pickup device whichk is capable of single hand operation.y Q f Another object of the present invention is to provide a device which is light in weight, yet which is suficiently. durable to resist failure in normal operation.
Still another object of' the present invention is to pro,- Vid'ea device which is of simple manufacture, and is readily disassembled for cleaning.
These and other objects of the present invention and the various features and details of the Yconstruction and operation thereof are more fully set forth hereinafter with reference tothe accompanying drawings` in which:
taken. on the line 317-3, of
Eig; 6 isfa sectional view .taken .on the.line^6.-6riiofv Fig. showing a cupY engaging a Small egg; and
Fig, Tis, 'atv view similar` to- Fig.' 5V showinga cup; er1-fV gaging an enlarged: egg.
bolts or screws 14 located at spaced intervals around the periphery of the plate 10 and engaging threaded ferrules 15 mounted in the plate 11. The bolts and ferrules effect aV clamping engagement of the plates 10 and 11 upon the sealing member'lZ to insure a fluid-tight compartment 13. To provide further structural rigidity, structural spaces 16, 16 are mounted intermediate the plates ldand 11 centrally thereof. If desired, the spacer elements 16 maybe composed of material similar to Vthe sealing member 1 2 in order to insure equal compression of the members 16 and the member 12. i v
Means is provided to evacuate the chamber 13. To this end, the plate 10 is provided with a central'aperture 20 having mounted therein a valveassembly 21. As shown in Figs. 3V and 4, the valve assembly 211 is open at one end through the apertures 20, to the chamber 13, and` is connected at the other end to a conduit 22 leading to a sourceof vacuum.- The assembly comprisesl acylinder 23` having therein a piston 24 biased upwardly by a spring 25 to maintain fluid communication between the conduit 212 and the chamber 1,3 through a groove in the piston 24, as indicated at 26V which communicates with a hollow bore 27 in thek valve element byv means of an aperture 2'8. The .valveis actuated4 `by a button, operator 2,9.` When the button operator- 29 is in the: upperposition (shown infFigs. 3 and 4) 'the groove 26 is in registry with the conduit 22 to the source of vacuum.l When the valve piston 24 is displaced downwardlyr by pressing ony the button 29, the groove 26 passes into registry with an inlet port 3 0 (see Fig. 4) which releases the vacuum inthe chamber 13. As shown in Fig. 4,v the inlet port 30 isprovided with a suitable filter 31` to. guard against the injection of dirt or other foreign mate-r rial intoy the chamber 13 through the port 30.- s
To provide single hand operation of the device, a handle 32 is mounted on the plate 10 adjacent the valve casing 21. ,In the present instance, the handle-32 embraces the upperl portion of the valve assembly, and extends rearwardly to rthema-rginal edge of the plate 10, but-it is,- within-thevscope of the invention to mount the handleat both ends. directlyonthe plate 10 alongsideor in closely spaced relation to the valve assembly 21.
The bottom plate 11 mounts a plurality of egg-engaging suction cups 35. As shown inFig.V 2,y the cups lare dis.- posed in rows of equal number, in the present instance-, six. The mounting of1 the cups affords ready assemblyand disassemblygfor cleaning. To this end, the bottom plate 11 isformcd with a plurality of threaded apertures. y 36. which threadablyreceive a plug 37 of the cup 35'.'
' ciently small to impede passage of albumen and thelike therethrough.V k i The body of the cup V3:5 is formed by a flexible sheathvr 40 having a plurality; irr the present Ainstance four, ac-f cordionwpleats fl-"hevsheatli- 40 is anchored" to the `block a or. plug 3.7 by a suitable adhesive and `'by engagement 'ofJ accordionr pleat. The plug- 37 is `readily disengageable from the plate 11 by reason of the threaded engagement thereoffwith thei'threadedtaper'ture. Thus, when the bore of -a'plug becomes clogged,"or otherwise ineffective, thedefective `suction `cupi-'assembly -35 may be threaded abtapered; boss on ithe 'plugm 31,.within the uppermost from fthe t aperture: 3t5- and"csleaned individually. As
pointed out, above, if albumen or' other foreign t material should be drawn into the suction chamber 13,the plates 11 and 10 may be disengaged for cleaning by releasing the bolts and Aferrules14 and 15. To prevent loss of the sealing element 12,` the'element is preferably cemented to one Vof the plates 10.and 11.V Thus, the pickup device of the'present invention may be readily disassembled for cleaning-or repair. y A
44In accordance with the present invention, means is provided to adapt the `device to pick up different numbers of eggs.V In the present instance; the bottom plate 11 and the top plate are fabricated `in twosections, main sections 11aand 10a respectively, Vandlminor sections 11b and 10b respectively. The plates 10a and 11a form therebetween a main chamber 13a and the plates 10b and llbform therebetween agminor chamber 13b;V A valve 50 alfordsi fluid communication between the chambers 13a and` 13b in one.position, and isolates the chambers in a second position.
y In the illustrated form of the invention, the minor section is hingedly connected to the major section, the valve 50 being-formed `integrally with the hinge. VTo this end, a' hollow tubular member 51 is mounted on the minor section 10b of the plate 10, for example as indicated at 52, 52 having its bore in, uid communication with they chamber 13b, as shown in Fig. 3. i .The central portion of the tubularmember 51 overlies the dividing line between themernbers` 10a` and 10bfinparallelisrn there` with, and` is received in an :elongated tubular collar 53 for rotation therein. Thegtubular member-51 and the collar 53 arefprovided with al pair of registering apertures indicated at 54 and 55 respectively which register when the major* and minor; sections are in the full line position shown'in Figs. 1` and 3; .The apertures 55 com- 7 and 1s.
municate with the major chamber 13a `through tubular conduits 56 mounted on the plate 10a as vindicated at 57. f To provide further structuralrigidity for the unit when in the full line position, a slide 58 is mounted at each side of the unit on vthe plate 10a for sliding movement into engagement with a keeper 59 on the plate 10b. When the slides 58, 58 are in the fullline position shown *in Fig. 1, the minor sections l10bland 11b are retained in alignment with the maior sections 10a and 11a as shown in Fig. 3. In this position, the chambers 13a and 13b are in lluid communication, and suction is applied to all of the cups 35 when the operator 29 is inthe upper limit position. `Displacing the operator 29 to the lower limit position connects the 'chambers 13a and 13b with atmosphere through the port 30 thereby releasing suction from the cups 35. "3
t When using only the major portion of the pickup device, ther minor portion is `pivoted into overlying relationship to the major portion, as indicated in broken lines in Fig. 3. Pivotal movement is` effected by releasing the slides 58 to their right hand limit position thereby disengaging` the keepers 59, and swinging the tubular element 51 within the collar 53. Swinging movement of the tubular element 51.Y causes 'the apertures 54 andkSS,
to pass outV ofregistry and closes lcommunicationbeber 13b is opened to the annospherethrough thetubular member, 51, Vthe port54, andthe port 61. r
illustrated embodiments of, the ,invention arejpar-f` tiacylarlyadapted to uses, whererst a given number; for
example, thirty-six eggs is desired to be picked up, than a lesser number, for example thirty eggs is desired to be picked up, and especially in installations where the side walls of the containers are closely adjacent the eggs. Where there is ample clearance between the side Walls and the eggs, the minor sections 11b and 10b of the plates 11 and 10 may be formed integrally with the major sections 11a and 10a. In this instance, a simple tubular connection is made between the chambers 13a and 13b, and a two-position valve similar to the valve is connected in the tubular connection to selectively connect the chamber 13b with the chamber 13a and atmosphere. In this modification of the invention, it is also possible to pick up a full complement of eggs with the cups connected to the chambers 13a and 13b, and then release first the eggs engaged by the cups connected with the chamber 13b, and then thereafter the eggs engaged in the cups communicating directly with the charnber 13a. This modification has particular application to transferring eggs from crates to incubator trays which receive a`less`er'number'of rows of eggs than there are rows in the crate. i
`In installations where only a given number of eggs is to be picked up for a prolonged period of time, and then a different number of eggs for a similar period of time, it is contemplated that the major and minor sections be formed integrally and with the major and minor chambers 13a and 13b in open communication. When handling the given number of eggs, a bottom plate i11 having the given number of cups mounted therein is used, and when handling a different number, the plate 11 is removed and a second plate is substituted which has the dilerentnumber of cups mounted therein. The present invention` provides for ready change-over by reason of the construction consisting of spaced plates separated by a sealing member and clamped together by releasable means, such for example as the bolts and ferrules 14 While Vcertain embodiments ofthe present invention have been disclosed herein, it is not intended to limit the invention to such disclosure, but changes and moditications may be made therein and thereto within `the scope of the following claims.
l l. In an egg pickup device, a first pair of at spaced parallel plate sections and sealing walls disposed intermediate said plates about the periphery thereof and defining a main chamber therebetween, means defining an aperture opening into said main chamber, valve means connecting said aperture selectively to a source of vacuum and the atmosphere, a plurality of suction cup elements Y mounted in uid communication with said main chamber,
a second pair of spaced parallel plate sections normally coplanar with said first plate sections and sealing walls disposed intermediate said' plates about the periphery thereof and dening a-minor chamber, a plurality of suction cup elements mounted in fluid communication with said minor chamber, hinge means interconnecting said first and second pairs of plate sections operable in one position to dispose said second pair of plate sections in its normal coplanar position with said first pair of plate sections and operable in a second position to dispose said second pair of plate sections in overlying relationship to said rst pair of plate sections, and valve means open- Vmg fluid communication between said main and minor chambers when said hinge is in its rst position, and` l, closing fluid communication between said'main and minor hinge being a collar slidably" embracing` said` tubular.-
chambers when said hinge'is in its second4 position, said valve means .being formed integrally with said hinge one element of said hinge being a hollow tubular member open to said minor chamber a second element of said member, an aperture in said collar opening into said main chamber and an aperture in said tubular member when in the first position of said hinge registering with said 5 collar aperture, and when in the second position of said hinge, being out of registry with said collar aperture.
2. A device according to claim 1 wherein said collar comprises means defining a second aperture opening to the atmosphere and positioned in registry with said aperture in the tubular element in the second position of said hinge.
3. In an egg pickup device, a irst flat plate, a second fiat plate coextensive with said tirst plate disposed in spaced parallel relation thereto, a sealing member mounted on one of said first and second plates about the periphery thereof, spaced inwardly of the outer edge thereof, and disposed intermediate said tirst and second plates in sealing engagement with the other of said irst and second plates to define a chamber therebetween, means defining an aperture opening into said chamber, means engaged with said first and second plates to compress said sealing member therebetween, a handle mounted on said first plate, means connecting said aperture to a source of vacuum, a plurality of suction cup elements mounted in said second plate, each comprising a resilient cup and a hollow shaft mounting said cup and opening at one end to the interior of said cup and at the other end to the interior of the chamber defined by said rst and second plates, means dividing said chamber into main and minor 6 chambers, said chambers normally disposed coplanar in side by side relation, auxiliary valve means intermediate said main `and minor chambers, means to operate saidv second plates are provided with mutually registering aper-v tures about the periphery outwardly of said sealing member, and wherein further said clamping means comprises bolt means passing through said apertures and engaging said plates.
References Cited in the le of this patent UNITED STATES PATENTS 1,741,021 Hitchcock Dec. 24, 1929 1,800,385 Y Hayes April 14, 1931 2,658,789 Tellier Nov. 10, 1953 FOREIGN PATENTS 713,770 Great Britain Aug. 18, 1954
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